Stamp or the like



May 14,1940- l. POLLACK STAMP 0R THE LIKE Filed March 22, 1939bwmNUnONNw unirev sTATss ATsT Fries STAMP OR THE LIKE Irwin L. Pollack,Chicago, Ill., assigner to American Decalcomania Company, Chicago, Ill.,a corporation of Illinois Application March 22, 1939, Serial No. 263,569

Claims. (Cl. 28B-10) This invention relates to a stamp or the like. Anysuitable water-soluble ink may be ern- It is particularly useful inconnection with ployed. For example, a soluble dextrine provided stamps,labels, or other devices which are apwith White Tibar pigment has beenfound satisplled to packages or containers. factory. Ii desired,glycerin or glycerin reduced An object of the invention is to provideexwith water` may be added. Since Water-soluble 5 tremely simple andeffective means for preventinks are well known and in common use, a de,-ing the soaking oi of stamps, labels, etc., and the tailed descriptionis believed unnecessary.

reuse ci the same. A further object is to prevent In the operation ofthe device, the stamp or the complicated structure heretofore thoughtlabel is applied to a container, such as, for eX- l necessary forpreventing the reuse oi stamps or ample, a beer barrel, by applyingadhesive to the labels and the substitution therefor of a strucbarrel orto one side of the stamp and thus seture consisting of less parts andwhich is much curing the stamp to the barrel. Should one atlessexpensive to produce. A further object is to tempt to soak oli the stampfor reuse, the appliprovide a simple structure which functions. morecation of Water results in some of the water pass- !5 certainly and moreeffectively than those heretoing through the porous paper and dissolving15 fore in use for preventing the reuse of stamps, the `white dextrineink. The dissolving of the labels, and the like. Other objects andadinl: causes the letterine Void, 0r SuGh Other vantages will appear asthe specification proceeds. word as was formed by the ink, to becomevisible The invention is illustrated, in a preferred emthrough the C0101layer? Thus, Onev Carl readily bodiment, by the accompanying drawing, insee that the stamp is marked Void and its reuse 20 Whichprevented.

Figure l a plan view of the stamp partly In the present construction, itwill be obbroken away toV show successively the top imserved that thewater-impervious layer is conpyint layer, the Color layer, 3,150 knownas the tinuous over the entire surface of the strip and Water-imperviouslayer, the paper layer having thus protects the face of the strip fromsmall g5 thereon the marking Vcid, and the bottom imn amounts ofmoisture as found in fog or inist or print layer; 2i, aside elevationalView of the as may be found in the air in humid sections. same showingthe various layers; and Fig. 3, a, The porous paper enables thedissolved ink to be l transverse sectional view taken along the line 3of readily absorbed S0 that the SPECS OTmSIly GC- Fig. 1, the line 3passing through all four layers cupied by the ink within the color layerforms 30 of the. same. prominently fthe Words indicating cancellation Inthe practice of my invention, I first select or voiding. a paper basewhich is preferably porous s0 as to It will be observed that no glue oradhesive is permit the ready flow of Water therethrough. now necessarywith this type of structure. The

5 Upon the upper face of the paper, I print Such action of the invisibleink is positive in that it 35 words as Void or Cancelled or some similarreadily disappears in the presence of the Water word, usingwater-soluble ink for this purpose. flowing through the paper.

The ink preferably should be White or of such While in the foregoingdeSClptOIl, I haV color so as not to show through the coloring layerSpeCied Certain details, it Will be understood 40 superposed ther-ecn.that these are for the. purpose of illustration, 40

Over the imprinting in water-soluble ink, I and it will further beobvious that those skilled next form a' color layer or aWater-impervious in the art may readily employ SubStitutOns Withlayer.This is preferably continuous covering out departing from the spirit ofmy invention. the entire top surface of the sheet, Upon the I wish it tobe understood that I do not desire Water-impervious layer, I nextimprint a stamp to be limited to the exact details of construction 45design, label design, etc. in spaced arrangement-, shown and described,for obvious modifications If desired, perforations may be formed betweenWill 000111" t0 a PelSOrl Skld in the art. the stamps so as to permittheir ready separa- 1 Clam tion 1. In a 4device of the character setforth, a pa- As shown in the illustration, an imprint or per strip,imprinting thereon in Water-soluble ink, 5()v design is also formed on`the bottom side of the a water-impervious layer over said ink andpapaper strip, this design preferably corresponding per and concealingsaid ink, and a design imprint to the design on the top of the colorlayer. If on said Water-impervious layer. desired, however, this latterdesign may be 2. In a device of the character set forth, a paomitted.per strip, an imprint thereon in white Water- 55 soluble ink, awater-impervious layer thereon and, concealing said ink, and an imprinton said Water-impervious layer.

3. In a device of the character set forth, a. porous paper strip, animprint thereon in Watersoluble ink indicating voiding when the ink isdissolved, a water-impervious layer over said ink and paper andconcealing said ink, and a design over said Water-impervious layer.

4. A stamp or the like comprising a strip of porous paper, an imprint onthe bottom side thereof, a design on the top side of the paper writtenin Water-soluble ink and indicating voiding of the stamp when the ink isdissolved, a water-impervious layer over the said design and concealingsaid design, and imprinting on the top of said water-impervious layer.

5. A stamp or the like comprising a porous paper strip, an imprintthereon in Water-soluble ink indicating voiding When the .ink isdissolved, a Water-impervious klayer over said ink and paper andconcealing said ink, and an im- 1.0

print on said water-impervious layer.

IRWIN'L. POLLACK.

